EP1837473A1 - Smoke evacuation device for a flap hinged to a frame - Google Patents

Abstract

Ventilator arrangement comprises an element (6) interacting with a smoke alarm and consisting of a tubing (7) which is guided through a guiding unit (8). The tubing is automatically guided under pressure through the guiding unit and is fixed above the guiding unit so that it forms a lifting element to pivot a flap (3) against the action of the guiding unit. Preferred Features: The guiding unit consists of two parallel shell-like elements or rollers (10.1, 10.2) forming a gap (9).

Description

Technical environment

The invention relates to a smoke extraction device for hinged to a frame flap, such as a dome light or a light flap, which is arranged on a flat roof roof mounted frame, and in case of fire from a flap position "Closed" in a flap position "open" with a means Compressed air controllable element is pivotable, wherein the element is in operative connection with a smoke, thermal or fire alarm, and the element pivots the flap in an angular position of preferably more than 90 ° to the frame.

State of the art

Drive devices for moving a flap are known per se. The DE 33 38 092 describes a drive device for smoke or heat extraction with a hinged on a frame flap, and a hinge arranged opposite the lock for the closure, wherein the flap can be transferred with a compressed air cylinder as a lifting element from a closed to an open position and vice versa. The lifting element is articulated on a rocker, which is pivotable about a fixed point on the frame by means of a second lifting element, so that the pivot point of the flap can migrate beyond the vertical plane passing through its hinge. In this case, the second lifting element is designed so that it can also act as an attenuator. In order to achieve the best possible conditions with little structural complexity in terms of Öffnungshubdämpfung and accessibility, the rocker and damping element are articulated vertically spaced from each other at locations of a fixed to the frame near the hinge bearing piece.

Similar actuators for moving a flap formed as a smoke evacuation device are also known from US 5,342,074 EP 0 885 341 B1 as well as from the EP 1 103 690 known.

In these known from the prior art smoke extraction devices, it is considered disadvantageous that in particular the mechanical means for swinging the flap in case of fire build extremely expensive. The so-called drive device consists of this a pressure cylinder, a linkage and a rocker, which accomplish the pivoting of the flap in case of fire. In addition, in the known devices, in particular the position of the lifting cylinder, which relates to the introduction of force, force in the damper frame, extremely unfavorable because it acts under an acute angular position on the aufzuschwenkende flap, as also in the example DE 102 20 840.9 is described.

task

Thus, the task a generic smoke extraction device continues to form, in particular, the flap from the closed state in a flap position "open" pivoted, on the one hand, the lifting element should occupy a favorable angular position with respect to the flap frame, and on the other hand, the lifting element with his required funds much easier and cheaper to build.

solution

The task solution describe the characterizing features of the main claim; advantageous developments and preferred embodiments describe the dependent claims.

The main advantage of the solution according to the invention results from the fact that the lifting element exerts its force alignment in the phase of the largest force introduction required at an obtuse angle to the flap frame. As a result, a direct introduction of force into the closed flap, dome light or the like can be initiated so that the flap position "closed" can be transferred into a flap position "open". Next, this results in a structural advantage, which can be seen in particular in that the element can be designed so small construction in its non-active position, so that the element can be mounted in a simple and space-saving manner in the area of the attached on the flat roof frame.

According to the invention, in this case, the element consists of a hose which is guided by a guide means, and wherein the hose automatically threads under pressure through the guide means, and the hose above the guide means solidifies such that it against the action of the guide means a Lifting element for pivoting the flap forms. It goes without saying that when the hose is pressurized, the end of the hose, which is also fastened simultaneously with the skylight, automatically threads itself through the guide means and exerts the corresponding pressure on the skylight to close it to open.

Here, the guide means consists of two gap-forming, mutually parallel arranged cup-shaped elements or rollers, each with flattened sides. This allows the lowest possible tension effect of the hose. The hose as such can here be made of fabric material, but also of other high-strength flexibly held plastics or other hose materials. The bowl-shaped elements or the rollers with their flattened areas make it possible to change the gap between the guide means, in which the flattened areas are pivoted relative to each other. In this position of the elements or roles, the extended pressure-free hose can easily and easily spend in the storage position in the holder.

In a further development of the invention, the dish-shaped elements or rollers are arranged in a holder, which is preferably fastened in the upper edge region of the frame. The holder as such can be designed as a housing for receiving the pressureless hose. Thus, the rolled-up pressureless hose can be kept below the guide means, wherein upon exposure of the hose with pressure, he unrolls automatically under the guide means or pulls out, so that the entire hose length is available to swing open the skylight.

According to an advantageous embodiment, in this case the holder consists of a traverse arranged horizontally in the frame for receiving the pressureless hose. This extends over the entire frame, wherein above the traverse a cooperating with the folding frame Klapptraverse is arranged, which in turn is in operative connection with the hinged flap. In this embodiment, upon actuation of the hose with pressure, the hinged flap is pushed up as a result of the folding cross-member which is connected to the hose end, so that the hinged flap is likewise swiveled accordingly. In a further development of the folding traverse, this can consist of several pivot-mounted rockers, each rocker acting together with a tube designed as a separate lifting element can. In particular, in order to increase the degree of opening of the hinged flap, acts with the folding cross-member connected to the flap fold-out scissor cross-member which is connected by means of a rope with the folding cross-member. In order to prevent an unintentional swinging the hinged flap, a locking device is arranged on the crossmember, which is in operative connection with the folding traverse. This locking device can be controlled by appropriate fire alarm, but can also be unlocked manually in the event that, for example, revision work on the hinged flap are required.

In a further development of the invention, a ventilation device may be provided on the traverse, which raises the flap by an amount for venting. For example, if it is desired to vent at high temperatures through the hinged flaps, it is possible to operate the vent to lift the flap a gap to permit natural ventilation over the roof.

According to an advantageous embodiment of the invention takes place on the flap side at the free end of the hose, the pressurization. For this purpose, a cylindrical neck is arranged at the free end of the hose, on the surface of a hinge point is arranged, which corresponds to a arranged on the flap frame pivot point. As a result, the mechanical connection between the flap frame and the fixed frame on the flat roof and the lifting element is brought about. In this case, the uniaxial hinge point can also be designed as a ball joint.

In a further development, a channel formed as a bore is arranged in the nozzle, which enters the nozzle and exits at the end of the nozzle for pressurizing into the hose. To pressurize the hose with a gas, preferably CO2 or compressed air is used. To trigger the pressurization, the smoke evacuation device is connected to a thermal or electrical automatic triggering device and / or manual manual triggering box, which in particular triggers the pressurization when a smoke or fire in the building propagates.

Description of the drawings

Figur 1:

Eine geschnittene Ansicht einer anscharnierten Klappe an einem auf einem Flachdach angesetzten Rahmen ;

Figur 2:

Eine erste Ansicht der Rauchabzugseinrichtung in der geschlossenen Stellung;

Figur 3:

Eine weitere Ansicht der Rauchabzugseinrichtung in der offen gefahrenen Stellung;

Figur 4:

Eine geschnittene Seitenansicht der an einem Rahmen anscharnierten Klappe mit Traverse sowie Klapptraverse:

Figur 5:

Eine weitere Ansicht gemäß der Figur 4 in Darstellung des teilweise ausgefahrenen Hubelementes;

Figur 6:

Eine weitere Ansicht gemäß der Figur 4 in Darstellung des komplett ausgefahrenen Hubelementes mit ausgeschwenkter Scherentraverse, die über ein Seil mit der Klapptraverse in Verbindung steht;

Figur 7:

Eine Detailansicht des in der Traverse um einen Umlenkpunkt angeordneten Schlauches;

Figur 8:

Eine weitere Ausführungsform gemäß der Figuren 4 bis 7 einer Traverse mit Entlüftungseinrichtung in geschlossener Position;

Figur 9:

Eine Darstellung der Entlüftungseinrichtung in der geöffneten Position;

Figur 10:

Eine weitere Darstellung der Traverse mit zwei im Klapprahmen angeordneten Klapptraversen sowie zwei zugeordneten Hubelementen; und

Figur 11:

Eine Darstellung gemäß der Figur 10 in der geöffneten Darstellung mit zwei Hubelementen.

An embodiment of the invention will be explained in more detail with reference to the following figures 1 to 11, in which:

FIG. 1:

A sectional view of a hinged flap on a mounted on a flat roof frame;

FIG. 2:

A first view of the smoke evacuation device in the closed position;

FIG. 3:

Another view of the smoke evacuation device in the open position driven;

FIG. 4:

A sectional side view of hinged on a frame flap with traverse and folding traverse:

FIG. 5:

Another view according to the figure 4 in representation of the partially extended lifting element.

FIG. 6:

A further view according to the figure 4 in view of the fully extended lifting element with pivoted scissor cross-member, which is connected via a rope with the folding traverse in connection;

FIG. 7:

A detailed view of the arranged in the cross member around a deflection hose tube;

FIG. 8:

A further embodiment according to Figures 4 to 7 of a traverse with venting device in the closed position;

FIG. 9:

An illustration of the venting device in the open position;

FIG. 10:

A further illustration of the traverse with two folding trays arranged in the folding frame and two associated lifting elements; and

FIG. 11:

A representation according to the figure 10 in the open view with two lifting elements.

embodiments

The invention relates to a smoke extraction device, as indicated in the whole by the reference numeral 1, and is shown in the figure 1. The smoke extraction device 1 is intended for a hinged to a frame 2 flap 3, for example, a dome light or a light flap. In this case, the flap 3 is arranged on an attached for example on a flat roof 4 frame 5. The flap 3 is in case of fire from a flap position "closed" (Figure 2) in a flap position "open" (Figure 1) with a controllable by means of compressed air lifting element 6 pivotally. The lifting element 6 is in operative connection with a non-illustrated thermal or electric automatic triggering device and / or manual manual release box, wherein the lifting element 6 pivots the flap 3 in an angular position of preferably more than 90 ° to the frame 5, as shown for example in FIG is shown.

As can be seen from the figure 1 to 3, the lifting element 6 consists of a hose 7, which is guided by a guide means 8, and wherein the hose 7 automatically threads under pressure by the guide means 8 passes. The tube 7 solidifies above the guide means 8 in such a way, in particular shown in Figures 1 and 3, that it forms the lifting element 6 for pivoting the flap 3 against the action of the guide means 8 in the direction of the arrow.

As can be seen from the synopsis of Figures 1 to 3, the guide means 8 consists of two a gap 9 forming mutually parallel cup-shaped elements or rollers 10.1 and 10.2, each with flattened sides, the bowl-shaped elements or rollers 10.1 and 10.2 in a Holder 11 are arranged, which is preferably fixed in the upper edge region of the frame 5. Due to this position, an optimal angle of attack for pivoting the flap 3 results for the lifting element 6 according to the invention. The shell-shaped elements or the rollers with their flattened areas 10.1 and 10.2 make it possible to change the gap 9 between the guide means 8, in which the flattened areas be pivoted each other. In this position of the elements or rollers 10.1 and 10.2, the extended pressureless hose 7 can easily and easily spend back into the storage position in the holder 11.

As can be seen in particular from FIG. 2, and here in the closed position of the flap 3, the lifting element 6 engages according to the direction of the arrow at an angle of 90 ° with respect to the flap edge 12 or frame edge 13. This can be done with a small pressurization, the opening of the flap 3, which is not possible with respect to the known in the art trigger devices that have a much less favorable angle of attack with respect to their impression cylinder.

In this case, the holder 11 is formed as a housing for receiving the pressureless hose 7, as it is below the guide means 8. From the three figures it can be seen that the flap side at the free end 14 of the tube 7, the pressurization takes place. In this case, a cylindrical connecting piece 15 is arranged at the free end of the tube 14, on the surface 16 of a hinge point 17 is arranged, which corresponds to a arranged on the flap edge 12 pivot point 18. As can further be seen from the figures, the pivot point 17/18 is preferably designed as a joint or ball joint 19.

As can be seen in particular from the illustration of Figures 2 and 3, a trained as a channel 20 bore is arranged in the nozzle 15, which enters the side of the nozzle 15 and enters the bottom 22 of the nozzle 15 for pressurizing into the tube 7. The pressurization of the tube 7 is carried out with a gas, which is preferably CO2 gas. As already explained in the introduction, the pressurization is controlled by a non-illustrated thermal or electrical automatic release device and / or manual manual release box.

FIG. 4 shows, in the closed situation of the hinged flap, the holder 11, which consists of a cross member 23 arranged horizontally in the frame 5 for receiving the pressureless tube 7. As can be seen from the figure, the tube 7 is horizontal in the traverse 23, wherein the tube 7 is mounted twice with respect to its length and at the end of the traverse 23 is held by a deflecting element 24. As can be seen from Figure 4, above the cross member 23 in the context of the flap 3, a folding cross member 25 is arranged, which is in operative connection with the hinged flap 3. The mode of operation in FIG. 5 becomes clear, where the lifting element 6 or in this case the tube 7 is partially extended, wherein the first layer is in consequence of the pressurization of the Hose 7 this has threaded through the guide member 8 through, so that the folding cross-25 with the associated flap 3 occupies the position shown there. If the lifting element 6 is extended further, the situation arises, as shown in FIG. In this case, the lifting element 6 moves with its end stop 26 against the guide means 8, and wherein in this end position of the folding traverse 25 from the folding crosspiece 25, the scissor crossbar 27 folds out with the flap 3. As can be seen from the figure, the cap 3 is connected to the scissors crosspiece 27 via a cable 28. Thus, an opening position of the flap 3 is achieved, which prevents an automatic closing of the flap 3 is made possible.

As can still be seen from FIGS. 4, 5 and 6, a locking device 29 is arranged on the cross member 23 and is operatively connected to the folding crosspiece 25. This locking device 29 prevents an automatic release of the hinged flap 3, wherein this is either controlled by a fire alarm or it can be unlocked manually to make appropriate revision work on the roof of the dome in this way can. Figure 7 shows in detail view in particular again the two-ply arrangement of the tube 7 in the crossmember 23, wherein at the end of the crossmember 23, a guide or deflection roller is provided as a deflecting element 24 so that a possible trouble-free driving out of the lifting element 6 is ensured in case of danger when the hose 7 is acted upon from its end side with the pressure medium.

Figures 8 and 9 show a particular embodiment of the invention, wherein in this embodiment, on the traverse 23, a so-called venting device 30 is provided. This venting device 30 consists of a controllable cylinder 31 which is in operative connection with the scissors crosspiece 27. Now, if this cylinder 31 is pressurized, the hinged flap 3 is opened by a limited amount, so that a natural ventilation can take place through the flap 3. FIG. 9 shows here the extended cylinder 31 with an amount which here corresponds, for example, to the cable extension.

Figures 10 and 11 show a further embodiment of the invention, wherein in this situation, in particular two lifting elements 6.1 and 6.2 are provided, which are held one above the other with their hoses 7.1 and 7.2 in the traverse 23. Corresponding are also two guide 8.1 and 8.2 provided, wherein the first guide 8.1 is arranged on the cross member 23 and with the first folding cross 25.1 acts together. The second guide means 8.2 is arranged at the end on the first folding traverse 25.1, in which case the lifting element 6.2 cooperates with the second folding cross 25.2, with which in turn the scissor cross 27 is connected via the cable 28. Thus, the following situation arises in the opened state, that first a first folding cross 25.1 is set so high, and the second folding cross 25.2 on the second lifting 6.2., Which is pivotally connected to the flap 3, is further pivoted to in this way also to achieve the appropriate degree of opening.

LIST OF REFERENCE NUMBERS

1

Smoke extraction facility

2

frame

3

flap

4

flat roof

5

frame

6

6 lifting element

7

tube

8th

guide means

9

gap

10.1

cup-shaped elements or rolls

10.2

cup-shaped elements or rolls

11

bracket

12

flap edge

13

frame edge

14

free end

15

Support

16

surface

17

fulcrum

18

fulcrum

19

ball joint

20

channel

22

ground

23

traverse

24

deflecting

25

folding Traverse

26

end stop

27

scissors Traverse

28

rope

29

locking device

30

vent

31

cylinder

Claims (12)

Smoke extraction device (1) for a flap (3) hinged to a frame (2), for example a dome light or a light flap, which is arranged, for example, on a frame (2) attached to a flat roof, and which in the event of fire results from a "closed" flap position. in a flap position "open" with a controllable by means of compressed air lifting element (6) is pivotable, wherein the lifting element (6) is in operative connection with a smoke, thermal or fire alarm, and the lifting element (6) the flap (3) in one Angled position of preferably more than 90 ° to the frame (2) pivoted, characterized in that the lifting element (6) consists of at least one hose (7) which is guided by a guide means (8), and wherein the hose (7) itself under pressure, automatically through the guide means (8) threaded through and the hose (7) above the guide means (8) solidified in such a way that he against the action of the guide means (8) a Hubelemen t (6) for pivoting the flap (3). Smoke extraction device according to claim 1, characterized in that the guide means (8) consists of two a gap (9) forming mutually parallel cup-shaped elements or rollers (10.1) and (10.2), each with flattened sides. Smoke extraction device according to claim 2, characterized in that the cup-shaped elements or rollers (10.1) and (10.2) are arranged in a holder (11), which is preferably fixed in the upper edge region of the frame (5), wherein the holder (11) as Housing for receiving the pressureless hose (7) is formed. Smoke extraction device according to claim 3, characterized in that the holder (11) consists of a for receiving the non-pressurized hose (7) arranged horizontally in the frame traverse (23). Smoke extraction device according to claim 4, characterized in that above the traverse (23) in the context of the flap (3) a folding traverse (25) is arranged, which is in operative connection with the hinged flap (3). Smoke extraction device according to claim 5, characterized in that the folding cross-member (25) can consist of a plurality of pivotally mounted folding averses (25.1, 25.2), wherein each folding cross-piece (25.1) and (25.2) cooperates with a separate lifting element (6.1) and (6.2). Smoke extraction device according to claim 5 or 6, characterized in that with the folding cross-piece (25) to increase the opening angle of the hinged flap (3) a collapsible scissor cross-piece (27) cooperates, which is connected by means of a cable (28) with the folding traverse (25) , Smoke extraction device according to claim 1 to 7, characterized in that on the traverse (23) a Verrieglungsvorrichtung (29) is arranged, which is in operative connection with the Klapptraverse (25). Smoke extraction device according to claim 1 to 8, characterized in that on the traverse (23) a venting device (30) is provided which raises the flap (3) by an amount for venting. Smoke extraction device according to claim 1 to 9, characterized in that at the free end of the hose (14) a cylindrical connecting piece (15) is arranged, on whose surface (16) a hinge point (17) is arranged, with one on the flap frame (12) or at the folding traverse (25) arranged hinge point (18) corresponds. Smoke extraction device according to claim 11, characterized in that in the neck (15) designed as a channel (20) bore is arranged, which enters the nozzle (15) and at the bottom (21) of the nozzle for Duckbeaufschlagung in the hose (7) emerges , Smoke extraction device according to claim 1 to 11, characterized in that the pressurization of the hose (7) with a gas, preferably CO2 gas, takes place, wherein the pressurization via a thermal or electrical automatic triggering application and / or manual manual trigger box is controlled.

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